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Current system:

I have installed Windows 8.1, and would like some guidance on installing Ubuntu so that the system is dual boot.

My drive looks like the following, (after installing Windows) on GParted, and shrinking sda4 from GParted (Ubuntu currently booted from USB): Windows partitions on GParted If I use the Ubuntu 13.10 Installer, when asked to select the installation type, there is the message:

This computer currently has no detected operating systems. What would you like to do?

Additional info:

I had previously tried to set up a RAID 1 system on the disk. Perhaps this makes a difference to the solution?

Question:

How can I get Ubuntu to recognise Windows so that the machine operates a dual boot?

Thanks

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marked as duplicate by Rod Smith, karel, Radu Rădeanu, Eric Carvalho, Luis Alvarado Jul 24 at 21:15

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